How does a pressure reducing valve work?
In the case of a pressure reducing valve, the outlet pressure (pressure prevailing on the outlet side) is set. The set pressure of a pressure reducing valve always refers to the outlet pressure at zero usage. i.e. no medium is flowing through the valve and all draw-off points are closed.
If a draw-off point on the outlet side is opened medium flows through the valve and the outlet pressure falls below the set pressure. Once the draw-off point is re-closed the outlet pressure rises again to the set pressure.
We show you how the pressure reducer works